They handle any pre-booking and pre-stay communication with guests.

AGREED, lots of people are scared to tell their tenants and avoid the communication, which as you pointed out just makes the situation worse. 

When we engage appraisers to appraise for loans, we do not tell them the loan amount, and we don’t allow them communication with the borrower.  

Coordinating a same-day sale required precise timing and effective communication.

I am thinking maybe I need to be more involved in the property management part and speak to the tenants myself throughout the year. the way it is now is my property manager handles all communication. 

She has been extremely responsive, polite, etc in all communication.

Coordinating a same-day sale required precise timing and seamless communication.

Coordinating a same-day sale required precise timing and effective communication.

Also, Z Wave and Zigbee radios are in sleep mode 99% of the time whereas WiFi radios are communicating pretty regularly.

I have communicated with many people there that also self manage and do very well.